|TLD type||Country code top-level domain|
|Registry||Russian Institute for Public Networks|
|Sponsor||Russian Institute for Public Networks|
|Intended use||Entities from the Soviet Union|
|Actual use||Entities from the post-Soviet states|
|Registered domains||119,423 (July 2014)|
|Structure||Registrations are permitted directly at the second level|
.su was assigned as the country code top-level domain for the Soviet Union on 19 September 1990. Even though the Soviet Union itself was dissolved a mere 14 months later, the .su top-level domain remains in use today. It is administered by the Russian Institute for Public Networks (RIPN, or RosNIIROS in Russian transcription).
After 1989 a set of new internet domains was created in Europe, including .pl (Poland), .cs (Czechoslovakia), .yu (Yugoslavia) and .dd (East Germany). Among them there was also a domain for the USSR – .su. Initially (before usage of two-letter domain was a standard) the Soviet Union was to receive a .ussr domain. The .su domain was invented by the then-19-year-old Finnish student Petri Ojala. On 26 December 1991 the country formally ceased to exist and its constituent republics gained independence, which should have caused the domain to be deregistered, as it happened with other domains such as those of East Germany or Czechoslovakia. Until 1993 there was no assigned top-level domain name for Russia. For this reason the country continued to use the Soviet domain. In 1993 the .ru domain was created, which is supposed to eventually replace the .su domain (domains for the republics other than Russia were created at different times in the mid-nineties; however, the domain usage outside the Russian region is slim). The domain was supposed to be withdrawn by ICANN, but it was kept at the request of the Russian government and Internet users.
In 2001, the managers of the domain stated that they will commence accepting new .su registrations, but it is unclear whether this action is compatible with ICANN policies. ICANN has expressed intentions to terminate the .su domain[when?] and IANA states that the domain is being phased out, but lobbyists stated in September 2007 that they had started negotiations with ICANN on retaining the domain. In the first quarter of 2008, .su registrations increased by 45%.
The domain was intended to be used by Soviet institutions and companies operating in the USSR. Currently, despite the formal dissolution of the country and the take-over of the domain by the republics that gained independence, it is still in use. Most of the .su domains are registered in Russia and the United States. According to the RU-CENTER data, there were over 93,500 registered pages with the .su domain (there are over 2.8 million .ru pages). Among the institutions still using this domain is the Russian party Nashi, which is connected with the President and Prime Minister of the Russian Federation., as well as by the Federal State of Novorossiya's separatists in Eastern Ukraine. In addition, the domain is also used by multinational concerns, such as Microsoft, Apple and Ford, which have their Russian pages registered in the .ru domain, also if they might be individually owned sites, as the whois suggests. Some organizations with roots in the Soviet Union also still use this TLD.
- "nic.ru (Russian ccTLD Registry) domain count". nic.ru.
- Компания "Демос" – первый российский интернет-провайдер. Услуги дата-центра, офисная телефония, Интернет, хостинг – Компания Демос (in Russian), retrieved 12 January 2010
- Marcin Kryska. "Domena internetowa SU" (in Polish). Retrieved 11 June 2012.
- "Юбилей Рунета: 10 лет назад финн Петри Ойала зарегистрировал домен .su" (in Russian). Retrieved 12 January 2010.
- .su Domain Delegation Data IANA
- Kilner, James (19 September 2007). "USSR still alive on Internet and won't go quietly". Reuters. Archived from the original on 13 December 2007. Retrieved 5 December 2007.
- Back in the USSR: Soviet Internet domain name resists death, Mansur Mirovalev, writing for Associated Press, 18 April 2008
- "Domena .su wciąż używana, chociaż ZSRR już nie ma" (in Polish). Retrieved 12 January 2010.
- "RU TLD: Registration and Delegation Statistics". Retrieved 11 May 2010.
- Nashi. Молодёжное демократическое антифашистское движение НАШИ / Главная (in Russian). Retrieved 12 January 2010.
- "Tons of Hackers are Hanging out in old Soviet Cyberspace". Gizmodo.